In a way that shows deep sympathy and concern for someone's suffering.
From 'compassionate' (adjective, showing compassion) plus the adverbial suffix '-ly' (from Old English, meaning 'in a manner'). Creates an adverb meaning 'in a compassionate manner.'
The '-ly' ending is so universal in English that we barely notice it, but it's one of the most productive suffixes in the language—we can add it to almost any adjective.
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